Dropping-stopper.



No. 755,549. PATENTED MAR. 22, 1904. K. RETTIG. DROPPING STOPPER.

APPLICATION FILED AUG. 18, 1903.

Witnesses. Wlkz 'L/?m, I i 6 Q3104 FUNITED STATES Patented March 22, 1904.

KARL RETTIG, OF SPANDAU, GERMANY.

DROPPING-STOPPER.

EPECIFICATION forming part of Letters Patent No. 755,549, dated March 22, 1904.

Application filed August 18, 1903.

T0 aZZ whmn it may concern:

Be it known that I, KARL RE'ITIG, a subject of the Emperor of Germany, residing at 25 Falkenhagenerstrasse, Spandau, Germany, have invented a new and useful Dropping-Stopper, of which the following is a specification.

By using my new dropping-stopper the drops are formed by atmospheric pressure produced by finger-pressure, securing thereby a most accurate counting out of the single drops by people of weak sight and trembling hands.

In order to better explain the object of my invention, the dropping-stopper is shown on the accompanying drawings, in which Figure 1 is a longitudinal section, and Fig. 2 is a plan.

The dropping-stopper consists of the cork (0, having a central perforation into which is inserted a T-shaped body 6. The body 6 has a shank c and the arms f and g and is traversed by two channels d and c, the one passing at right angles through the arm f, the other at right angles through the arm Channel (Z is the liquid-channel, which may be closed by the threaded cap 0, screwed upon the arm f. The other channel, 6, is the airvchannel and is enlarged at its end in the arm g. The enlarged part is threaded within for receiving a threaded stopper ending in a flange 71;, concave on its outer side and convex on the opposite side. The flange is provided with a small perforation m near its edge. The arm 9 of the body I) has an integral flange h on its end, concave at its free end. A channel 2' extends partially across the stopper p, ending near the flange 7a. A packing-ring Z is arranged between the month of channel 2'- and the flange 7; for tightening the channel e' when the flange Z9 is screwed against the flange it.

An india-rubber cap 12., having a small perforation in its center, incloses the flanges 7c and h, leaving a small cavity between the flange 70 and the cap.

The cork a may be put into the neck of a bottle.

Having now described the construction of my invention, I now describe its operation.

Serial No. 169,879. (No model.)

The bottle is held horizontally, then the threaded cap 0 is unscrewed, and the threaded stopper 1) is moved back a little from the flange 71 by unscrewing. Now the bottle is ready for use. By pressing a finger against the india-rubber cap 9?. the perforation therein is closed, and the air between the cap and the flange It is pressed through the perforation m in the said flange 70 into the channel 2 and from channel c' through the channel 6 of the body 1) into the bottle. The atmospheric pressure presses the liquid inclosed in the bottle through the channel (Z and forms the drops.

What I claim as my invention is 1. In a dropping-stopper the combination with a cork which may be put into the neck of a bottle, a Tshaped body inserted therein, two channels passing through the shank and the arms of the body, a flange arranged at the end of one arm, being concave on its outer side, an india-rubber cap having a central perforation inclosing the said flange and leaving a small cavity between the flange and the cap as set forth.

2. In a dropping-stopper the combination with a cork, which may be put into the neck of a bottle, a T-shaped body inserted therein, two channels passing through the shank and the arms of the body, a flange being arranged at the end of one arm, the channel ending in the said arm being enlarged and an india-rubber cap, having a small central perforation, inclosing the said flange and leaving a small cavity between the flange and the cap, as set forth.

3. In a dropping-stopper the combination with a cork, which may be put into the neck of a bottle, a T-shaped body inserted therein, two channels passing through the shank and the arms of the body, a flange being arranged at the end of one arm, the channel ending in the said arm, being enlarged and threaded within, a threaded stopper screwed into the enlarged channel, said stopper ending in a flange, shaped concave on its outer side and convex on the opposite side, an angular channel extending partially across the threaded part of the said stopper and ending near the flange of the stopper, an india rubber cap,

having a small central perforation, inclosing the flange of the arm of the body and the flange of the threaded stopper, as set forth.

4. In a dropping-stopper the combination with a cork, Which may be put into the neck of a bottle, a T-shaped body inserted therein, two channels passing through the shank and the arms of the body, the channel of one arm adapted to be closed by a threaded. cap, a flange being arranged at the end of the other arm, the channel ending in the latter arm being enlarged and threaded Within, a threaded stopper screwed into the enlarged channel, a flange arranged at the free end of the stopper,

shaped concave on its outer side, and convex on the opposite side, an angular channel ex tending partially across the threaded part of the stopper and ending near the flange thereof, a packing ring arranged between the month'of the channel and the flange, and an india-rubber cap, having a small central perforation, inclosing the flange of the arm of the T-shaped body and the flange of the threaded stopper, as set forth.

KARL RETTIG. Witnesses:

WOLDEMAR HAUPT, HENRY HASPER. 

